Effect of high pressure on temperature dependences of the resistivity in the ab-plane of Y0.77Pr0.23Ba2Cu3O7-δ single crystals
نویسندگان
چکیده
Abstract In the present work, we investigated influence of high hydrostatic pressure up to 11 kbar on conductivity in basal ab-plane medium-doped with praseodymium ( x ≈0.23) single-crystal Y 1-x Pr Ba 2 Cu 3 O 7-δ samples. It was determined that, contrast pure YBa samples optimal oxygen content, application leads formation phase separation plane 0.77 0.23 single crystals. Possible mechanisms effect doping and two-step resistive transition superconducting state are discussed. that normal state, is metallic limited by phonons scattering (Bloch-Grüneisen regime) defects. The fluctuation considered within Lorentz-Doniach model. Hydrostatic pressure, accompanied a decrease anisotropy, residual phonon resistances. Debye temperature coherence length independent pressure. applicability McMillan formula presence significant anisotropy
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ژورنال
عنوان ژورنال: Journal of Materials Science: Materials in Electronics
سال: 2022
ISSN: ['1573-482X', '0957-4522']
DOI: https://doi.org/10.1007/s10854-022-07977-5